baber/WOPTO huggingface dataset:
Patent GB-280825-A (GB)
Title: Improvements relating to hopper ventilators for windows
IPC: E06B7/26
Filed: 1927-07-09
Abstract: 280,825. Grasse, D. J. de. July 9, 1927. Ventilators.- A ventilator for a sash window consists of an air-deflecting panel 7 carried by end plates 8 which are pivotally and slidably supported, and means operated by the sash are provided for raising the end plates and swinging the panel clear of the path of the sash when the window is closed. When the window is opened. the panel moves downwardly and swings outwardly under the action of gravity. Each plate 8' has one right angled slot 9 engaging a screw 12 entering the window frame, and a second slot 13 accommodating a screw 14, which pivotally supports a link 15 hinged at its lower end to a lever 17. The lever 17 is pivoted to the plate 8 at 18 and is of U-section for engaging the flange 19 of the plate 8. Engagement by the sash with the lever 17 causes the panel 8 to swing inwardly and upwardly. The plates 8 have flanges against which the glass panel 7 is supported and these flanges are turned up at their lower ends to form a socket 22 for the reception of the lower edge of the panel. A pivotally-mounted plate 23, having a depending flange 24 fitted with a bent part is provided on each plate 8 at the top for holding the panel in position. In a modification, Fig. 4, a bracket 26 secured to the sash has an inclined face 27. A lever 17<1> pivoted at 29 to each plate 8<1> and a pin 30, which extends through a slot 31 in the plate 8<1>, is connected with a link 15<1> pivotally mounted on a screw 14<1>. When the bracket 26 strikes a pin 28 on the lever 17', it causes the latter to move downwardly and the pin 29 and plate 8' move upwardly guided by the pin 12 in the slot 9. The pin 28 moves in an arc-shaped slot in the plate 8.
Patent GB-185897-A (GB)
Title: Improvements in vacuum operated cow milkers
IPC: A01J5/04
Filed: 1921-07-06
Abstract: 185,897. Williams, J. N., and Middleton, H. C. July 6, 1921. Cow-milkers.- To facilitate the detection of a leakage of milk from the teat cups into the pipe connecting the teat cups with a vacuum pulsator, the pipe is severed and a pipe 1 is inserted between the severed parts. The pipe 1 bas apertures 21, 22 below and above a blocking-piece 20 and it is surrounded by a transparent cylinder 5 with closing discs 8, 2, at top and bottom. Milk leaking into the pipe is trapped in the cylinder 5.
Patent GB-514549-A (GB)
Title: Improvements in or relating to means for use in inspecting screw threads
IPC: G01B5/20
Filed: 1939-02-23
Abstract: 514,549. Gauging screw threads. HOOPER, A. E. Feb. 23, 1939, No. 18353. Divided out of Complete Specification of 513,263. [Class 106 (ii)] Relates to gauges having opposed master forms provided with teeth of the correct form and pitch and carried in the limbs of a U-shaped member, and consists in making one limb 23 adjustable to and from the other limb 24 which carries the master form 1 in a guide 26a so that it may be displaced to actuate a sensitive indicator 30. The limb 23 is adjustable along a slot in a base 25 and is clamped at 26. The forms 1 are of T-shape the leg of the T being slotted to engage a'boll. One form 1 is clamped to limb 23 by bolt and nut 19, 18, the other being received in a guide 26a with its slot engaging a stud 27. The end of the slot is pressed against the stud by leaf springs attached to the fixture 29 and engaging the end of the form. The plunger of a dial gauge 30 also engages the end of the form. The edge of the form is bevelled to a knife edge.
Patent GB-114127-A (GB)
Title: Improved Apparatus employed in the Cutting of the Pile of Weft Pile Fabrics.
Inventor: ROGER GEORGE
IPC: D06C13/08
Filed: 1917-12-12
Abstract: 114,127. Roger, G. Dec. 12, 1917. Pile, cutting.-In machines of the kind described in Specification 19381/95 for cutting the pile of weft-pile fabrics such as velveteens and cords, the means for traversing the knife carriages from race to race is in direct connexion with the cloth-bearing frame and is situated in convenient proximity to the free hand of the operator. The knife carriages b are mounted on cords passing round a pulley c at each end of the machine, one of the pulleys being driven from a hand-operated wheel g and both being moved simultaneously across the fabric. The wheel g and pulley c are mounted on a sliding frame k guided by a wheel m in contact with the floor and by rods n, o on the end of the fabricsupporting frame t. The frame k is traversed by the hand operation of a spindle i adapted to wind a cord passing over a pulley on the frame k and secured at its other end to a bracket l on the cloth-bearing frame. In a modification, the spindle i is geared through bevel-gearing with a nut connected to the frame k and adapted to be traversed along a screw-shaft secured, for example, to brackets Each bearing-roller u, Fig. 7, is made of metal, is longitudinally split, and is provided at one end with a socket v, having an aperture v<1> for the insertion of a lever for turning the roller, and with a ratchet-wheel w adapted to be engaged by a pawl x on the bracket l. The table t supporting the fabric is made wider than the fabric in order that the pile may be cut near the selvedges. The table is covered with fabric secured at the edges by means of lathe nailed to the sides of the .table. Specification 15387/97 also is referred to.
Patent GB-186448-A (GB)
Title: Improvements in and connected with double beat valves
IPC: F01B25/00
Filed: 1921-07-07
Abstract: 186,448. Lentz - Lokomotiv - Umbau Akt.-Ges., and Lentz, H. July 7, 1921. Making, processes for; closure members, double beat lift.- Double - beat valves for distributing steam in steam - engines have the outer body portion pressed from sheet metal, and attached to a central member with radial arms. The valve spindle g, Fig. 1, carries a hub f provided with radial arms d having lugs e which are welded to the outer body portion a which is a sheet-steel pressing. The part a may be pressed in a singlepiece, or in two pieces which are welded together at the line h. The radial arms d may alternatively be riveted to the part a, either directly or by means of flanges and rivets.
Patent GB-359425-A (GB)
Title: Process for improving the mechanical properties of magnesium alloys
IPC: C22C1/02
Filed: 1930-06-16
Abstract: To improve the mechanical properties of high percentage magnesium alloys the alloys are superheated one or more times to a temperature of at least 800 DEG  C.  Examples are given of treating magnesium alloys containing 3, 6 and 10 per cent of aluminium and a ternary alloy containing magnesium, 4 per cent aluminium and 3 per cent zinc. The duration of the superheating varies inversely for any given alloy with the temperature of superheat and is usually not less than 15 minutes and the minimum temperature of superheat varies with the nature of the alloy.  Specification 219,287, [Class 82 (i), Metals, Extracting &c.], is referred to.
Patent GB-1521424-A (GB)
Title: Surface coating compositions
IPC: C08G59/42
Filed: 1976-05-05
Abstract: 1521424 Surface coating composition VIANOVA KUNSTHARZ AG 5 May 1976 [7 May 1975] 18446/76 Headings C3B and C3P A surface coating composition is prepared by: (a) reacting substantially equimolar quantities of an anhydride of a non-aromatic cyclic dicarboxylic acid and a monohydroxy (C2-12 alkyl) ester of (meth)acrylic acid; (b) reacting the product so formed with a diepoxide until an acid value <5 mg. KOH/g. is obtained; (c) reacting the product of step (b) with 5-9. mole per cent, calculated on the OH groups present, of an unsaturated monoisocyanate CH2 = CR<1>-(O-R<2>-O)n-CONH-R-NCO (R is an aromatic or (cyclo)aliphatic group; R<1> is H or CH3; R<2> is a straight or branched chain C2-12 hydrocarbon group and n=0 or 1) until an isocyanate value of substantially zero is obtained. Step (a) may be carried out at 80-90 C. Step (b) may be carried out at 90- 100 C. preferably in the presence of an esterification catalyst and/or polymerization inhibitor. Step (c) may take place at 70-80 C. The unsaturated product of step (c) may be dissolved in one or more polymerizable monomers. In a typical example: (a) a semiester is prepared from hexahydrophthalic anhydride and hydroxyethyl methacrylate; (b) the product of (a) is reacted with a diglycidyl ether of bisphenol A in the presence of triethylamine as catalyst and the product dissolved to 80% solids in a 1 : 1 blend of n-butyl acrylate and 1,4-butanediol dimethacrylate; (c) the above solution is then reacted with a monoisocyanate obtained from 130 g. of hydroxyethyl methacrylate and 220 g. of isophorone diisocyanate. The compositions are readily cross-linkable by irradiation, e.g. a dose of 1-5 Mrad from an electron beam accelerator.
Patent GB-535090-A (GB)
Title: Improvements in and relating to pistons for engines, compressors, pumps and the like
IPC: F16J1/01
Filed: 1939-06-24
Abstract: 535,090. Pistons made of synthetic resins. SPECIALLOID, Ltd., and GRAHAM, E. B. June 24, 1939, No. 18477. [Class 2 (iii)] [Also in Group XXVI] In piston bodies of the kind formed of an infusible organic material, such as a phenolformaldehyde condensation product, metal is incorporated in or applied to the body to serve as a reinforcing or heat-distributing medium. The head of the piston may be formed of or coated with a metal, which is preferably of high reflecting properties, such as copper, aluminium, or an aluminium alloy. The metal may be applied by spraying, and may extend over the whole surface of the piston. The body may contain a reinforcement of fibrous or filamentous material, which may be organic or inorganic, such as asbestos, or metal wire or gauze. The reinforcement may consist of metal wire or tape wrapped about or embedded in the composition. The piston may have a winding of flat or square-sectioned wire to serve as piston rings.
Patent GB-175585-A (GB)
Title: Improvements in and relating to piston rings
IPC: F16J9/20
Filed: 1921-02-11
Abstract: 175,585. Ashley, C. S. April 10, 1920, [Convention date]. Pistons; piston packing.-A split piston ring is provided with one or more peripheral grooves 2, which terminate near the joint in the ring. The grooves serve to collect oil and to equalize the tension of the ring, and are deepest near the joint and decrease in depth to the point opposite the joint. Specification 161,561 is referred to.
Patent GB-1352965-A (GB)
Title: Safety device for vehicles
IPC: B60R21/215
Filed: 1972-04-21
Abstract: 1352965 Vehicle passenger protecting guards; steering wheels VOLKSWAGENWERKE AG 21 April 1972 [24 April 1971] 18562/72 Headings B7B and B7J Apparatus for protecting a vehicle occupant during a collision comprises a non-inflatable pad 9 backed by a resilient plate 5 mounted on a piston 6 which is slidable in a cylinder, 7 under air pressure, towards the passenger. The apparatus may be mounted inside a dished steering wheel, comprising a rim 4 and spokes 3, or below the dashboard or in the backrests of the front seats. A pressurized casing 11 may be provided which is attached around the rim of plate 5 and which has a groove 13 adapted to engage the steering wheel rim 4 when the apparatus is actuated. The rear of the casing is attached to a ring 12 which is connected to plate 5, when the apparatus is not in use, by cables 15 which are cut on actuation of the device.
Patent GB-912765-A (GB)
Title: Process of preparing pyrazines
IPC: C07D/
Filed: 1960-05-26
Abstract: Pyrazine compounds of formula <FORM:0912765/IV (b)/1> in which R1, R2, R3 and R4 are hydrogen, methyl or ethyl radicals are produced by vaporizing and passing a piperazine compound of formula <FORM:0912765/IV (b)/2> over a copper chromite catalyst at a temperature of 300-375 DEG C. and a superatmospheric pressure up to 65 psig., the copper chromite consisting of 40-85% by weight of CuO and 60-15% Cr2O3 and having been previously hydrogen-reduced at a temperature of 300 DEG C. The preferred temperature range for carrying out the process is 355-365 DEG C.  Suitable starting materials include piperazine, 2-methylpiperazine, 2,5 - dimethylpiperazine, 2,6 - dimethylpiperazine, 2,3,5-trimethylpiperazine, 2,3,5,6-tetramethylpiperazine, 2-ethylpiperazine, 2,6-diethylpiperazine and 2,3,5,6-tetraethylpiperazine from which the corresponding pyrazine derivatives are obtained.  Reference has been directed by the Comptroller to Specification 893,266.
Patent GB-724073-A (GB)
Title: Improvements in bladed rotor constructions for turbines and like fluid flow machines
IPC: F01D5/02
Filed: 1949-07-15
Abstract: 724,073. Turbine and compressor blades and rotors. STALKER, E. A. July 15, 1949 [July 15, 1948], No. 18691/49. Class 110 (3). A turbine or compressor rotor comprises a hub portion 51, Fig. 1, enclosed by a shroud ring 40 and blades projecting radially from the shroud ring and each comprising a tail part 22 and abutting the tail part a plurality of parts 20, 18 of trough shape in cross-section, the parts nesting one in another in axial tandem relation to form a composite blade and being independently supported by means extending through the shroud ring to the hub. The blades and their supports are formed from three discs 10, 12, 14 which are cut and pressed, as shown for disc 10 in Fig. 3. End discs 42, 44 are flanged at 46, 48 to receive shroud ring elements 40. The discs 10, 12, 14, 42 and 44 are secured to a hub 51 on a shaft 52. The ends of the blade parts are turned over to provide closed ends for the blades. The gaps 28, 30 between the blade parts may be left open, as in Fig. 2. Cooling air, admitted at 54 to the rotor, passes into the hollow blades and escapes through the gaps. Alternatively, the gaps may be closed by fusing the walls of the blade parts together. Specifications 647,143 and 724,115 are referred to.
Patent GB-244672-A (GB)
Title: Improvements in or relating to draught excluders for doors
IPC: E06B7/20
Filed: 1925-07-22
Abstract: 244,672. Meyer, C. H. July 22, 1925. Draught excluders.-A sliding-bar draught excluder of the kind actuated by a rod 28 and bellcrank levers 23 has recesses 29 formed in the operating rod which receive one arm of each of the bell-crank operating levers. The second arm of each of the levers is connected to recessed guided lugs on the excluder. The excluder consists of a resilient strip 17 in a U-shaped holder housed between spaced plates in a recess in the door. An adjustable screw stop is provided in the jamb for the actuating rod.
Patent GB-222987-A (GB)
Title: Improvements in horizontal and inclined gas retort settings
IPC: C10B1/06
Filed: 1923-07-20
Abstract: 222,987. Cummins, F. B. July 20,1923. Retort furnaces.-A horizontal or mclined gas retort setting is provided with supplomentary air inlets at the top of the retort chamber for supporting combustion of the burning gases passing through the retort chamber, the arrangement being such that the burning gases draw therethrough supplementary air into the retort chamber as they travel along their paths. Fig. 1 shows a front sectional elevation, Fig. 2 shows a side sectional elevation, and Fig. 4 shows a sectional plan on the line D-D of Fig. 1 of a retort chamber. The setting is divided to the ground level by a central wall 1, and is further subdivided by partitions 12 into narrow chambers having supplementary air inlets 39 at the top. Parallel waste gas passages 3, 4 extend from the back to the middle wall 1, beneath the level of the lowest retorts 2, and communicate with the waste gas main flue 21. Producer gas from a producer 22 is supplied to gas passages 7 - - 10, Fig. 4; passage 7 communicates through a hole in the wall 1 with passage 9, and passage 8 communicates similarly with passage 10. Secondary air is supplied to conduits 30, 31, Fig. 1, adjacent to the gas conduits 7, 8 from air inlets 27, 28, which are controlled by dampers. Each narrow chamber is supplied with gas and air from the gas and air conduits 8, 31 respectively through holes 14 and 37, and the burning gases travel up one side of each row of retorts 2 and down the middle, as indicated by the arrows. When the gases pass over the top of each outside row of retorts, supplementary air for further supporting combustion is drawn in through ports 39, these ports being supplied with air from damper-controlled inlets 40, 41, Fig. 1, the air ascending through passages 44, 45 containing baffles formed in the setting. The waste gases from the narrow chambers of the front half of the setting pass through ports 15 to the upper half of the waste-gas passage 4, Fig. 2, whence they travel horizontally to the left-hand end, where they pass down through an opening in the horizontal dividing wall 17 to the lower half of the waste-gas passage 4. Then they travel horizontally along the lower half of the passage 4 towards the centre wall 1, and finally pass through passages 56 to the main waste-gas flue 21. The waste gases from the chambers on the other half of the setting similarly pass through passages 5 and 6 and through passaged 56 to the flue 21.
Patent GB-751180-A (GB)
Title: A new or improved suspensory
IPC: A61F5/40
Filed: 1954-06-25
Abstract: 751,180. Surgical suspensory bandages. JOHNSON, A. June 25, 1954 [March 8, 1954], No. 18731/54. Class 81(2). A suspensory comprises two similar sheets of material 11 joined along their lower edges 14 and each having one end of a body strap 18 joined to its upper portion. An adjustable strap 24 also extends between the upper parts of the sides to hold these in the desired position. Preferably the body of the appliance is made from flexible moisture impervious material such as a vinyl resin.
Patent GB-232838-A (GB)
Title: Improvements in or relating to shuttles for looms
IPC: D03J5/00
Filed: 1924-08-06
Abstract: 232,838. Wiedemann, J. May 12, 1924, [Convention date]. Shuttles.-The metal heads 1 are each hollowed out to receive an axially-movable pin 3 controlled by a spring 4 of larger diameter than the pin, and forming a yielding impact member. Each pin has a flange 3a.
Patent GB-1222581-A (GB)
Title: Improvements in vehicle trainer controls and control loading
IPC: G09B9/28
Filed: 1968-04-19
Abstract: 1,222,581. Vehicle simulators. GENERAL PRECISION SYSTEMS Inc. 19 April, 1968 [19 April, 1967], No. 18744/68. Heading B7W. A simulator for vehicles (e.g. aircraft, ships, trains or automobiles) comprises a device (e.g. a wheel 14) operable by a trainee operator to move a shaft 15, on which the device is mounted, both along its axis and rotationally about its axis, the axial motion and rotational motion each being transmitted (e.g. by cables 23, 18) to a device (e.g. a potentiometer 37, 32) to give an electrical signal proportional to the amount of movement from a datum position towards which the shaft 14 is biased by apparatus (e.g. cylinders 24, 21 and pistons 53, 44). Each piston is urged out of its cylinder by a spring, and the relative motion of the piston in the cylinder is damped by the passage of air through constricted orifices in the ends of the piston. Each piston 44, 53 is limited in its extension from its cylinder 21, 24 by stops 46, 49, 52, 54 and is urged into its cylinder either when an enlargement 48, 55 on its cable 18, 23 engages the end of the piston as the cable moves one way, or as another enlargement 45, 57 engages the cylinder end as the cable moves the other way, in each case one of the stops is unloaded. Axial movement of the shaft may be transmitted via a bracket 22 to an enlargement 41 on the cable 23, and rotational movement, via a housing 16, in which the shaft is axially slidable, including a drum 17 to which the cable 18 is anchored, e.g. by a stud 26. In the embodiment of Fig. 2 the signals from the potentiometers 32, 37 may indicate the direction of the movements of the cables. An alternative form of rotational motion centring device is shown in Fig. 6, which also shows one form of connection of a shaft 71 in a housing 73 which may be used for the shaft 15 in the housing 16.
Patent GB-779471-A (GB)
Title: Improvements in or relating to stereo contour projectors
IPC: G02B21/00
Filed: 1955-06-29
Abstract: 779,471. Stereoscopic optical projection systems. EASTMAN KODAK CO. June 29, 1955 [June 30, 1954], No. 18763/55. Class 97(1) A system for a contour projector comprises means for illuminating an object to be viewed, an image display screen, a telecentric lens system for receiving light from the object and projecting an image thereof on to the screen, said telecentric lens system including a positive first lens for receiving the light from the object, a second lens and an aperture plate with two horizontally spaced apertures as the telecentric stop of the lens system located in the rear focal plane of the first lens and in front of the second lens, and a pair of anaglyph filters respectively over the apertures for distinguishing the two beams passing through the apertures. In the form shown light from the source 10 is collimated by the lens 11 before falling on the object 12 and then passes through a system of two lenses 30, 31, spaced at the sum of their focal lengths, which forms an image at 33 after reflection of the beam at mirrors 32. An objective 34, 35 forms an image on the screen 16 after reflection of the beam at 36. The spaced apertures 42 are formed in front of anaglyph filters 44 in a plate 40 which is inclined and polished so that episcope illumination can be produced on the object by the lamp 50 and condenser 51. The projected image is viewed through anaglyph filters 16. In a simpler embodiment there is no provision for episcopic illumination, the plate 40 being normal to the axis, and the lens 30, in combination with a negative lens beyond the filters 44, projects the screen image directly. Specification 674,193 is referred to.
Patent GB-531176-A (GB)
Title: Improvements in and relating to renewable heels and soles for boots and shoes
IPC: A43B21/06
Filed: 1939-06-28
Abstract: 531,176. Boot &c. protectors. NICOLL, J. S., FERGUSON, W. HAIG-, and FERGUSON, C. HAIG-. June 28, 1939, No. 18780. [Class 17 (iii)] A sole or heel protector comprises a main section 2, Fig. 1, of leather, rubber &c. and two symmetrical peripheral sections 4, 5 of similar material, the meeting edges 3 of the sections with the main section, and with each other at 8, 9 being formed with half lap or stepped joints, as shown at 7, Fig. 2.
Patent GB-446142-A (GB)
Title: Improvements relating to vehicle seat structure
IPC: B60N2/23
Filed: 1935-07-02
Abstract: 446,142. Seat adjustments. WHEDON, Inc., Medina, New York, U.S.A. July 2, 1935, No. 18865. Convention date, March 27. [Class 52 (ii)] In an adjustable seat, the seat-bottom 10 and seat-back 16 are carried upon a support 11, and the back is pivoted at 20 intermediate the front and rear ends of the seat-bottom to allow forward and upward movement of the back, means being provided for locking the back in adjusted position. The adjusting device comprises a notched bar 30, pivoted to brackets 26, Fig. 3, on the seat frame 13, and a bracket 37 mounted on the frame of the seat-back. The bar 30 extends through a slot in the bracket 37, and the notches on the bar engage the end of the slot. An actuating rod 40 mounted on the seat back has a cranked end which engages a slot. in the bar 30, a spring 50 causing the cranked end of the rod to keep the notches of the bar 30 in engagement with the bracket 37. A coil spring 35 is arranged between the bracket 37 and the frame 13 to facilitate the upward and forward movement of the back.